U-Th signatures of agricultural soil at the European continental scale (GEMAS); Distribution, weathering patterns and processes controlling their concentrations

The GEMAS Project Team

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6 Citations (Scopus)

Abstract

Agricultural soil (Ap-horizon, 0–20 cm) samples were collected in Europe (33 countries, 5.6 million km2) as part of the GEMAS (GEochemical Mapping of Agricultural and grazing land Soil) soil-mapping project. The GEMAS survey area includes diverse groups of soil parent materials with varying geological history, a wide range of climate zones, and landscapes. The soil data have been used to provide a general view of U and Th mobility at the continental scale, using aqua regia and MMI® extractions. The U-Th distribution pattern is closely related to the compositional variation of the geological bedrock on which the soil is developed and human impact on the environment has not concealed these genuine geochemical features. Results from both extraction methods (aqua regia and MMI®) used in this study support this general picture. Ternary plots of several soil parameters have been used to evaluate chemical weathering trends. In the aqua regia extraction, some relative Th enrichment-U loss is related to the influence of alkaline and schist bedrocks, due to weathering processes. Whereas U enrichment-Th loss characterizes soils developed on alkaline and mafic bedrock end-members on one hand and calcareous rock, with a concomitant Sc depletion (used as proxy for mafic lithologies), on the other hand. This reflects weathering processes sensu latu, and their role in U retention in related soils. Contrary to that, the large U enrichment relative to Th in the MMI® extraction and the absence of end-member parent material influence explaining the enrichment indicates that lithology is not the cause of such enrichment. Comparison of U and Th to the soil geological parent material evidenced i) higher capability of U to be weathered in soils and higher resistance of Th to weathering processes and its enrichment in soils; and, ii) the MMI® extraction results show a greater affinity of U than Th for the bearing phases like clays and organic matter. The comparison of geological units with U anomalies in agricultural soil at the country scale (France) enables better understanding of U sources in the surficial environment and can be a useful tool in risk assessments.

Original languageEnglish
Pages (from-to)1277-1293
Number of pages17
JournalScience of the Total Environment
Volume622-623
DOIs
Publication statusPublished - 1 May 2018
Externally publishedYes

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Weathering
agricultural soil
weathering
Soils
soil
parent material
bedrock
Lithology
lithology
distribution
Bearings (structural)
chemical weathering
soil horizon
extraction method
anthropogenic effect
schist
risk assessment
Risk assessment
Biological materials
grazing

Cite this

@article{f4cbd46b89e44270b7e919a012ea0872,
title = "U-Th signatures of agricultural soil at the European continental scale (GEMAS); Distribution, weathering patterns and processes controlling their concentrations",
abstract = "Agricultural soil (Ap-horizon, 0–20 cm) samples were collected in Europe (33 countries, 5.6 million km2) as part of the GEMAS (GEochemical Mapping of Agricultural and grazing land Soil) soil-mapping project. The GEMAS survey area includes diverse groups of soil parent materials with varying geological history, a wide range of climate zones, and landscapes. The soil data have been used to provide a general view of U and Th mobility at the continental scale, using aqua regia and MMI{\circledR} extractions. The U-Th distribution pattern is closely related to the compositional variation of the geological bedrock on which the soil is developed and human impact on the environment has not concealed these genuine geochemical features. Results from both extraction methods (aqua regia and MMI{\circledR}) used in this study support this general picture. Ternary plots of several soil parameters have been used to evaluate chemical weathering trends. In the aqua regia extraction, some relative Th enrichment-U loss is related to the influence of alkaline and schist bedrocks, due to weathering processes. Whereas U enrichment-Th loss characterizes soils developed on alkaline and mafic bedrock end-members on one hand and calcareous rock, with a concomitant Sc depletion (used as proxy for mafic lithologies), on the other hand. This reflects weathering processes sensu latu, and their role in U retention in related soils. Contrary to that, the large U enrichment relative to Th in the MMI{\circledR} extraction and the absence of end-member parent material influence explaining the enrichment indicates that lithology is not the cause of such enrichment. Comparison of U and Th to the soil geological parent material evidenced i) higher capability of U to be weathered in soils and higher resistance of Th to weathering processes and its enrichment in soils; and, ii) the MMI{\circledR} extraction results show a greater affinity of U than Th for the bearing phases like clays and organic matter. The comparison of geological units with U anomalies in agricultural soil at the country scale (France) enables better understanding of U sources in the surficial environment and can be a useful tool in risk assessments.",
keywords = "Agricultural soil, Geochemistry, Thorium, Uranium, Weathering",
author = "{The GEMAS Project Team} and Philippe N{\'e}grel and {De Vivo}, Benedetto and Clemens Reimann and Anna Ladenberger and Domenico Cicchella and Stefano Albanese and Manfred Birke and {De Vos}, Walter and Enrico Dinelli and Annamaria Lima and O'Connor, {Patrick J.} and Ignace Salpeteur and Timo Tarvainen and M. Andersson and R. Baritz and Batista, {M. J.} and A. Bel-lan and A. Demetriades and M. Ďuriš and A. Dusza-Dobek and Eggen, {O. A.} and M. Eklund and V. Ernstsen and P. Filzmoser and Flight, {D. M.A.} and S. Forrester and M. Fuchs and U. F{\"u}gedi and A. Gilucis and M. Gosar and V. Gregorauskiene and {De Groot}, W. and A. Gulan and J. Halamić and E. Haslinger and P. Hayoz and R. Hoffmann and J. Hoogewerff and H. Hrvatovic and S. Husnjak and L. Janik and G. Jordan and M. Kaminari and J. Kirby and V. Klos and F. Krone and P. Kwecko and L. Kuti and J. Locutura and P. Lucivjansky and A. Mann and D. Mackovych and M. McLaughlin and Malyuk, {B. I.} and R. Maquil and Meuli, {R. G.} and G. Mol and K. Oorts and Ottesen, {R. T.} and A. Pasieczna and V. Petersell and S. Pfleiderer and M. Poňavič and C. Prazeres and U. Rauch and S. Radusinović and M. Sadeghi and R. Scanlon and A. Schedl and A. Scheib and I. Schoeters and E. Sellersj{\"o} and I. Slaninka and Soriano-Disla, {J. M.} and A. Šorša and R. Srvkota and T. Stafilov and V. Trendavilov and P. Valera and V. Verougstraete and D. Vidojević and Z. Zomeni",
year = "2018",
month = "5",
day = "1",
doi = "10.1016/j.scitotenv.2017.12.005",
language = "English",
volume = "622-623",
pages = "1277--1293",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier",

}

TY - JOUR

T1 - U-Th signatures of agricultural soil at the European continental scale (GEMAS); Distribution, weathering patterns and processes controlling their concentrations

AU - The GEMAS Project Team

AU - Négrel, Philippe

AU - De Vivo, Benedetto

AU - Reimann, Clemens

AU - Ladenberger, Anna

AU - Cicchella, Domenico

AU - Albanese, Stefano

AU - Birke, Manfred

AU - De Vos, Walter

AU - Dinelli, Enrico

AU - Lima, Annamaria

AU - O'Connor, Patrick J.

AU - Salpeteur, Ignace

AU - Tarvainen, Timo

AU - Andersson, M.

AU - Baritz, R.

AU - Batista, M. J.

AU - Bel-lan, A.

AU - Demetriades, A.

AU - Ďuriš, M.

AU - Dusza-Dobek, A.

AU - Eggen, O. A.

AU - Eklund, M.

AU - Ernstsen, V.

AU - Filzmoser, P.

AU - Flight, D. M.A.

AU - Forrester, S.

AU - Fuchs, M.

AU - Fügedi, U.

AU - Gilucis, A.

AU - Gosar, M.

AU - Gregorauskiene, V.

AU - De Groot, W.

AU - Gulan, A.

AU - Halamić, J.

AU - Haslinger, E.

AU - Hayoz, P.

AU - Hoffmann, R.

AU - Hoogewerff, J.

AU - Hrvatovic, H.

AU - Husnjak, S.

AU - Janik, L.

AU - Jordan, G.

AU - Kaminari, M.

AU - Kirby, J.

AU - Klos, V.

AU - Krone, F.

AU - Kwecko, P.

AU - Kuti, L.

AU - Locutura, J.

AU - Lucivjansky, P.

AU - Mann, A.

AU - Mackovych, D.

AU - McLaughlin, M.

AU - Malyuk, B. I.

AU - Maquil, R.

AU - Meuli, R. G.

AU - Mol, G.

AU - Oorts, K.

AU - Ottesen, R. T.

AU - Pasieczna, A.

AU - Petersell, V.

AU - Pfleiderer, S.

AU - Poňavič, M.

AU - Prazeres, C.

AU - Rauch, U.

AU - Radusinović, S.

AU - Sadeghi, M.

AU - Scanlon, R.

AU - Schedl, A.

AU - Scheib, A.

AU - Schoeters, I.

AU - Sellersjö, E.

AU - Slaninka, I.

AU - Soriano-Disla, J. M.

AU - Šorša, A.

AU - Srvkota, R.

AU - Stafilov, T.

AU - Trendavilov, V.

AU - Valera, P.

AU - Verougstraete, V.

AU - Vidojević, D.

AU - Zomeni, Z.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - Agricultural soil (Ap-horizon, 0–20 cm) samples were collected in Europe (33 countries, 5.6 million km2) as part of the GEMAS (GEochemical Mapping of Agricultural and grazing land Soil) soil-mapping project. The GEMAS survey area includes diverse groups of soil parent materials with varying geological history, a wide range of climate zones, and landscapes. The soil data have been used to provide a general view of U and Th mobility at the continental scale, using aqua regia and MMI® extractions. The U-Th distribution pattern is closely related to the compositional variation of the geological bedrock on which the soil is developed and human impact on the environment has not concealed these genuine geochemical features. Results from both extraction methods (aqua regia and MMI®) used in this study support this general picture. Ternary plots of several soil parameters have been used to evaluate chemical weathering trends. In the aqua regia extraction, some relative Th enrichment-U loss is related to the influence of alkaline and schist bedrocks, due to weathering processes. Whereas U enrichment-Th loss characterizes soils developed on alkaline and mafic bedrock end-members on one hand and calcareous rock, with a concomitant Sc depletion (used as proxy for mafic lithologies), on the other hand. This reflects weathering processes sensu latu, and their role in U retention in related soils. Contrary to that, the large U enrichment relative to Th in the MMI® extraction and the absence of end-member parent material influence explaining the enrichment indicates that lithology is not the cause of such enrichment. Comparison of U and Th to the soil geological parent material evidenced i) higher capability of U to be weathered in soils and higher resistance of Th to weathering processes and its enrichment in soils; and, ii) the MMI® extraction results show a greater affinity of U than Th for the bearing phases like clays and organic matter. The comparison of geological units with U anomalies in agricultural soil at the country scale (France) enables better understanding of U sources in the surficial environment and can be a useful tool in risk assessments.

AB - Agricultural soil (Ap-horizon, 0–20 cm) samples were collected in Europe (33 countries, 5.6 million km2) as part of the GEMAS (GEochemical Mapping of Agricultural and grazing land Soil) soil-mapping project. The GEMAS survey area includes diverse groups of soil parent materials with varying geological history, a wide range of climate zones, and landscapes. The soil data have been used to provide a general view of U and Th mobility at the continental scale, using aqua regia and MMI® extractions. The U-Th distribution pattern is closely related to the compositional variation of the geological bedrock on which the soil is developed and human impact on the environment has not concealed these genuine geochemical features. Results from both extraction methods (aqua regia and MMI®) used in this study support this general picture. Ternary plots of several soil parameters have been used to evaluate chemical weathering trends. In the aqua regia extraction, some relative Th enrichment-U loss is related to the influence of alkaline and schist bedrocks, due to weathering processes. Whereas U enrichment-Th loss characterizes soils developed on alkaline and mafic bedrock end-members on one hand and calcareous rock, with a concomitant Sc depletion (used as proxy for mafic lithologies), on the other hand. This reflects weathering processes sensu latu, and their role in U retention in related soils. Contrary to that, the large U enrichment relative to Th in the MMI® extraction and the absence of end-member parent material influence explaining the enrichment indicates that lithology is not the cause of such enrichment. Comparison of U and Th to the soil geological parent material evidenced i) higher capability of U to be weathered in soils and higher resistance of Th to weathering processes and its enrichment in soils; and, ii) the MMI® extraction results show a greater affinity of U than Th for the bearing phases like clays and organic matter. The comparison of geological units with U anomalies in agricultural soil at the country scale (France) enables better understanding of U sources in the surficial environment and can be a useful tool in risk assessments.

KW - Agricultural soil

KW - Geochemistry

KW - Thorium

KW - Uranium

KW - Weathering

UR - http://www.scopus.com/inward/record.url?scp=85037688179&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/uth-signatures-agricultural-soil-european-continental-scale-gemas-distribution-weathering-patterns-p

U2 - 10.1016/j.scitotenv.2017.12.005

DO - 10.1016/j.scitotenv.2017.12.005

M3 - Article

VL - 622-623

SP - 1277

EP - 1293

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -